Building a deck is one of the best investments you can make to enhance your home’s comfort and value. Before you start designing, it’s helpful to understand what a deck costs in 2025. Material technology, design complexity, and construction demand all play a role in pricing. Knowing what drives those numbers helps you make better decisions about layout, finishes, and timing.
At Decked Out Builders, we provide clear, detailed quotes that reflect the full project cost with no hidden fees, or surprise charges.
Average Deck Costs in 2025
Pricing depends on size, height, and material selection. In 2025, most homeowners in Illinois see these average total cost ranges:
| Deck Type | Typical Size | Total Cost Range |
| Pressure-Treated Wood | 200–400 sq ft | $10,000–$20,000 |
| Cedar/Redwood | 200–400 sq ft | $15,000–$25,000 |
| Composite | 200–400 sq ft | $20,000–$40,000 |
| PVC (Advanced Composite) | 200–400 sq ft | $35,000–$55,000 |
While wood remains the entry-level option, most homeowners now choose composite or PVC decking for long-term durability, appearance, and minimal maintenance.
What Affects Deck Cost
No two decks are priced the same. Several factors determine your final cost:
Deck Size and Height
Larger decks require more framing, railing, and stair systems and take more time. Elevated decks may need need additional beams and posts for stability.
Framing Type
Pressure-treated framing is standard, but steel framing offers superior strength and longevity ideal for large or elevated decks.
Material Selection
Composite and PVC decking from brands like Deckorators and TimberTech provide enhanced fade resistance, color variety, and warranties.
Design Complexity
Curved borders, inlays, lighting, and multi-level designs add unique detail and visual appeal.
Site Access and Conditions
Yard slope, existing landscaping, or tight access can impact build time and equipment requirements.
Quality and Craftsmanship
Pricing reflects craftsmanship, precision, and materials not shortcuts. Lower bids may skip important structural elements like proper ledger flashing, joist tape, or premium fasteners, which can lead to issues later or even additional work orders/costs.
Decked Out Builders follows best practices for every project:
- Proper spacing and ventilation for composite decking
- Joist and beam protection for long-term moisture resistance
- Structural framing that meets or exceeds local building codes
- Galvanized exterior rated hardware for superior strength
- Dedicated project management and communication throughout
Our focus is always on building decks that last, both in structure and appearance.
Long-Term Costs: Maintenance and Lifespan
Wood decks often cost less initially but more overtime due to upkeep and maintenance costs. Composite and PVC decking require occasional cleaning and last significantly longer.
| Deck Type | Maintenance Needs | Lifespan | Maintenance Cost (10 Years) |
| Wood | Sanding, staining, sealing | 10–15 years | $5,000–$15,000 |
| Composite | Simple soap-and-water cleaning | 25–50 years | $300–$600 |
| PVC | Simple soap-and-water cleaning | 30–50 years | $200–$400 |
If you plan to live in your home for several years, composite and PVC decking provide better long-term value and resale appeal.
Features That Enhance Function and Value
Upgrades can raise the cost slightly but add major functionality and visual appeal:
- Integrated Lighting – step and rail lights for safety and ambiance
- Pergolas and Roof Covers – shade and weather protection
- Under-Deck Drainage – creates usable storage or patio space below
- Decorative Railings – aluminum, glass, or mixed materials
- Built-In Seating or Kitchen Areas – transform your deck into a complete outdoor living area
Decked Out Builders helps you plan for these upgrades from the start so they integrate seamlessly into your design.
How Decked Out Builders Handles Quotes
Homeowners often find itemized quotes confusing, with separated labor, materials, and vague allowances. That’s not how we work.
At Decked Out Builders, every quote is structured as an all-inclusive project total—clear, detailed, and accurate. You’ll see the full scope of work, materials, finishes, and upgrades represented as one complete number.
Each proposal includes:
- A defined scope of work based on your design
- Clear descriptions of finishes, railing, and materials to choose from
- Transparent, fixed pricing with no hidden costs
Our process removes guesswork. You know your full investment upfront, so you can make confident decisions about your outdoor space.
Choosing the Right Time to Build
In Illinois, spring through early fall is the busiest building season. Scheduling your design and quote in winter can help you secure an earlier build date and avoid seasonal material price increases. Decked Out Builders offers off-season design planning so your project is ready to go once weather allows.
Plan Your Next Outdoor Living Upgrade
Understanding deck pricing in 2025 helps you plan with confidence and avoid unexpected costs. Whether you prefer the warmth of natural wood or the longevity of composite, the key is choosing a builder who values detail, communication, and craftsmanship.
If you’re ready to start your project, call us today 815-900-5199 to review materials, layouts, and your custom deck design with the Decked Out Builders team.
